Flood barrier
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">flood barrier</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for dam that I've seen before include "Water retainer" , "A mad kind of mum" , "Animal's mother" , "Mad as an animal mum" , "Embankment" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">flood barrier</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for levee that I've seen before include "Morning reception once held by monarch" , "protection for bank" , "Embankment that should prevent flooding" , "Artificial embankment" , "Gathering" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">flood barrier</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Another definition for dike that I've seen is " ditch".)